An applicator for insertion and lubrication of a body lumen is disclosed having an elongate, hollow, cylindrical reservoir including a rounded distal end to facilitate insertion, and an aperture centrally disposed at said distal end, or central aperture together with additional apertures arranged along the cylindrical reservoir. The reservoir holds a quantity of lubricant, and a mating cylindrical plunger is provided that is sized to be received in a proximal end of the elongate, hollow cylindrical reservoir and adapted to slide within the reservoir to force said quantity of lubricant through said disposed aperture(s). Using the applicator, a body lumen can be lubricated in situ to mimic the bodys own lubrication system.